Action: LabSat - 1 curve
		Make adjustment layer
			Using: adjustment layer
			Type: curves
			Adjustment: curves adjustment list
			curves adjustment
			Channel: a channel
			Curve: point list
			point: 64, 0
			point: 193, 255
			curves adjustment
			Channel: b channel
			Curve: point list
			point: 64, 0
			point: 193, 255
		Set current layer
			To: layer
			Name:  “Lab Sat”